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CN1070230A - 一种钛镍合金箔及板材的制取工艺 - Google Patents

一种钛镍合金箔及板材的制取工艺 Download PDF

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Publication number
CN1070230A
CN1070230A CN 91106230 CN91106230A CN1070230A CN 1070230 A CN1070230 A CN 1070230A CN 91106230 CN91106230 CN 91106230 CN 91106230 A CN91106230 A CN 91106230A CN 1070230 A CN1070230 A CN 1070230A
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titanium
nickel
plate
reparation technology
alloy foil
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CN1028375C (zh
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王者昌
梁亚男
斯重遥
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Institute of Metal Research of CAS
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Institute of Metal Research of CAS
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Abstract

一种钛镍合金箔及板材的制取工艺,系属于合金 领域,其主要特征是将钛、镍板相间叠放,用真空电子 束焊封接,再采用热压或热扩散焊将钛板与镍板焊接 起来,然后热轧减薄,扩散处理或揭层成箔,或经扩散 处理后再进行一次或多次中间轧制-扩散处理,即可 获得近等原子比的钛镍合金板材。

Description

本发明系属于合金领域,即提供了一种钛镍合金箔及板材的制取工艺。
钛镍合金除具有形状记忆功能外,还具有超弹性、高阻尼减振性能以及优良的耐腐蚀、抗磨损性能,因此钛镍合金在许多领域中得到广泛应用。但是到目前为止,该合金的生产均是采用传统的生产工艺,即:冶炼-锻造-轧制法,用这种传统工艺制取钛镍板的成品率低、成本高、制取钛镍箔的成本则更高。
为提高成品率,简化生产工艺,降低成本,本发明提供了一种钛镍合金箔及板材的制取工艺。
本发明的主要特征在于将钛和镍板相间叠放、焊合、轧制到每层厚度小于50μm,再进行扩散处理,利用镍向钛扩散后形成的连片孔洞揭层获得钛镍合金箔;若想得到钛镍合金板,经扩散处理后再进行一次或多次中间轧制-扩散处理,即可获得近等原子比的钛镍合金板材。
本发明所提供的钛镍合金箔和板材制取工艺流程如下:
1、将钛板和镍板交替叠放,置于金属盒内,用真空电子束焊封接;
2、采用热压或扩散焊将钛板与镍板焊接起来;
3、热轧减薄。制取钛镍合金箔时,每层钛和镍的厚度应减薄到50μm以下,制取钛镍板时,每层钛和镍的厚度可达100μm以上;
4、扩散处理。
扩散处理的温度在800-940℃范围内,保温时间至少1个小时,以使钛与镍形成近等原子比的钛镍合金;
5、揭层成箔。
利用镍向钛扩散形成的连片孔洞分层,得到100μm以下的钛镍合金箔;
若想获得钛镍合金板材,可利用二次轧制将扩散的孔洞轧合,反复进行扩散-轧制,扩散温度为800-940℃,时间至少1小时,每次变形量为5-30%,即可得到较厚的钛镍合金板材。
下面给出本发明所提供的实施例1-一种钛镍合金箔的制取工艺
将多层的钛板和镍板相间放入金属盒中,用真空电子束焊封接,用真空热压焊法使钛和镍板之间实现焊接,进行热轧减薄,使每层的厚度不大于50μm,然后经900℃,8小时的扩散处理,最后利用扩散形成的连片孔洞分层,得到100μm以下的近等原子比的钛镍合金箔。
实施例2-一种钛镍合金板材的制取工艺
将多层等厚度的钛板和镍板相间地放入金属盒中,用真空电子束焊封接,再用真空热压焊使钛和镍板之间实现焊接,进行热轧减薄在扩散处理温度为900℃,时间为8小时的条件下进行多次扩散-轧制,得到近等原子比的钛镍合金板,每次中间轧制变形量为10%。中间轧制的作用在于消除扩散孔洞,以便扩散过程继续进行。
由本发明所提供的制取工艺生产出的近等原子比的钛镍合金箔与传统的冶炼-锻造-轧制方法相比,不仅工艺简单,成品率高,而且成本仅为传统方法的1/10左右,生产出的钛镍板成本也仅为传统工艺的1/3左右。

Claims (2)

1、一种钛镍合金箔的制取工艺,其特征在于制取工艺的步骤如下:
(1)将钛、镍板相间叠放,置于金属盒内用真空电子束焊封接;
(2)采用热压焊或扩散焊将钛板与镍板焊接起来;
(3)热轧减薄;
(4)扩散处理,温度:800-940℃
             保温时间:1个小时以上。
(5)揭层成箔,利用镍向钛扩散形成的连片孔洞来分层,获得100μm以下的钛镍合金箔。
2、一种钛镍合金板材的制取工艺,其特征在于制取工艺步骤如下:
(1)将钛、镍板相间叠放,置于盒内用真空电子束焊封;
(2)采用热压焊或扩散焊将钛与镍板焊接起来;
(3)在扩散处理温度为800-940℃,时间为1小时以上的条件下多次扩散-轧制,每次轧制变形量为5-30%。
CN 91106230 1991-09-06 1991-09-06 一种钛镍合金箔及板材的制取工艺 Expired - Fee Related CN1028375C (zh)

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CN1321205C (zh) * 2005-01-13 2007-06-13 四川大学 冷轧超薄叠层合金化制备NiAl形状记忆合金薄膜
CN1816641B (zh) * 2003-05-09 2010-07-07 Ati资产公司 钛-铝-钒合金的加工及由其制造的产品
US8499605B2 (en) 2010-07-28 2013-08-06 Ati Properties, Inc. Hot stretch straightening of high strength α/β processed titanium
US8568540B2 (en) 2004-05-21 2013-10-29 Ati Properties, Inc. Metastable beta-titanium alloys and methods of processing the same by direct aging
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US10513755B2 (en) 2010-09-23 2019-12-24 Ati Properties Llc High strength alpha/beta titanium alloy fasteners and fastener stock
CN110842022A (zh) * 2019-12-06 2020-02-28 东北大学 一种记忆合金纳米叠层Ni/Ti预制坯的制备方法
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US8568540B2 (en) 2004-05-21 2013-10-29 Ati Properties, Inc. Metastable beta-titanium alloys and methods of processing the same by direct aging
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